64486436829 has 36 divisors (see below), whose sum is σ = 94749798816. Its totient is φ = 38933269056.

The previous prime is 64486436801. The next prime is 64486436851. The reversal of 64486436829 is 92863468446.

It is not a de Polignac number, because 64486436829 - 2⁵ = 64486436797 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64486436879) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 40077777 + ... + 40079385.

It is an arithmetic number, because the mean of its divisors is an integer number (2631938856).

Almost surely, 2^64486436829 is an apocalyptic number.

64486436829 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

64486436829 is a deficient number, since it is larger than the sum of its proper divisors (30263361987).

64486436829 is an equidigital number, since it uses as much as digits as its factorization.

64486436829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282 (or 1654 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 60.

The spelling of 64486436829 in words is "sixty-four billion, four hundred eighty-six million, four hundred thirty-six thousand, eight hundred twenty-nine".